Kafkakafka-topics.sh
Kafka之kafka-topics.sh的使用解读
目录一、kafka的基本操作1.1、创建topic1.2、查看topic1.3、查看topic属性1.4、发送消息1.5、消费消息二、kafka-topics.sh 使用方式2.1、查看帮助2.2、副本数量规则2.3、创建主题2.4、查看broker上所有的主题2.5、查[详细]
2023-03-08 10:27 分类:开发In SQL, what does Group By mean without Count(*), or Sum(), Max(), avg(), ..., and what are some uses of it?
In SQL, if we use Group By without Count(*) or Sum(), etc, then the result is as follows: mysql>select * from sentGifts;[详细]
2022-12-28 14:37 分类:问答